Brown sauce is a traditionaw condiment served wif food in de United Kingdom and Irewand, normawwy dark brown in cowour. The ingredients incwude a varying combination of tomatoes, mowasses, dates, appwes, tamarind, spices, vinegar, and sometimes raisins or anchovies. The taste is eider tart or sweet wif a peppery taste simiwar to dat of Worcestershire sauce. It is simiwar to brown sauce marketed as steak sauce in de United States.

Chef and YR Sauce are popuwar brown sauce brands in Irewand. Whiwe YR stands for Yorkshire Rewish, de sauce has been produced in Irewand since 1933 and is currentwy manufactured in County Donegaw by Robert Roberts.

Most supermarket chains in de UK and Irewand awso stock deir own brand of brown sauce. As wif oder condiments wike ketchup, mayonnaise, and mustard, brown sauce is widewy avaiwabwe in catering sachets and dispenser bottwes in restaurants.

Between 2013 and 2014 de sawes of brown sauces in de UK decreased by approximatewy 19%, according to market research company Mintew, dough more dan 13 miwwion kg are stiww consumed each year.[5][6]There is awso a German brand Zooze from Cowogne dat introduced a fancy version for de premium market cawwed "The Gentweman's Cwub Sauce" and which appears to be an homage to de traditionaw British brown sauce.[7]